🧮 Free Online Tool

GST Calculator India 2026

Calculate GST instantly — add or remove GST from any amount. Supports all slabs: 5%, 12%, 18%, 28%.

🧮 GST Calculator

Add GST to amount or extract GST from total

Calculation Result
Base Amount₹0
GST Amount (18%)₹0
Total Amount₹0
Base: ₹0 | GST: ₹0 | Total: ₹0
📖 How GST Calculation Works

Adding GST: GST Amount = Base Amount × GST Rate ÷ 100
Total = Base Amount + GST Amount

Removing GST: Base Amount = Total ÷ (1 + GST Rate ÷ 100)
GST Amount = Total − Base Amount

CGST/SGST: Same state transactions — GST split equally between Centre & State.
IGST: Different state transactions — single integrated tax.

❓ Frequently Asked Questions
What is the difference between CGST, SGST and IGST? +
CGST and SGST are charged on intra-state (same state) transactions — each at half the total GST rate. IGST is charged on inter-state transactions at the full GST rate. The total tax amount is the same either way.
Which GST rate applies to my service? +
Most professional services (IT, consulting, design, marketing) attract 18% GST. Essential goods are at 5%, standard goods at 12%, and luxury/sin goods at 28%. Check the GST rate card on the right side of this page.
How do I calculate GST on a GST-inclusive price? +
Use the "Remove GST from Total" mode. Enter the GST-inclusive amount and select the rate — the tool will calculate the base amount and GST portion automatically.
Is this calculator accurate for 2026? +
Yes. This calculator uses the current GST rates applicable in India for FY 2026–27. The rates are updated as per GST 2.0 changes from September 2025.
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Kirra — AI Support 🟢 Online · clearInvoices.in
👋 Hi! I'm Kirra, your clearInvoices AI assistant! I can help with GST invoicing, plans, and more. What do you need?